things that are profitable to no human being, or things not profitable in any way at all? Can you call such things as these good?By no means, he replied; but I know a number of things that are unprofitable to men, namely, foods, drinks, drugs, and countless others, and some that are profitable; some that are neither one nor the other to men, but are one or the other to horses; and some that are profitable only to cattle, or again to dogs; some also that are not profitable to any of those, but are to trees; and some that are good for the roots of a tree, but bad for its shoots—such as dung,